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I’m an AI Engineer and full-stack developer who enjoys building production-grade systems where retrieval accuracy, latency, and cost all matter—not just prompts. Over the last 14+ years, I’ve delivered 50+ high-performance websites and e-commerce products, and I’ve led end-to-end engineering for teams and client roadmaps. Today I focus on RAG pipelines, agentic workflows, and LLM orchestration, backed by real-world experience shipping integrations like a WooCommerce-powered RAG chatbot. I also build polished React/Next.js experiences and robust WordPress/WooCommerce/Shopify backends, aiming for clean architecture, consistent UX, and measurable performance improvements (90+ PageSpeed and A+ GTmetrix results).…I’m an AI Engineer and full-stack developer who enjoys building production-grade systems where retrieval accuracy, latency, and cost all matter—not just prompts. Over the last 14+ years, I’ve delivered 50+ high-performance websites and e-commerce products, and I’ve led end-to-end engineering for teams and client roadmaps. Today I focus on RAG pipelines, agentic workflows, and LLM orchestration, backed by real-world experience shipping integrations like a WooCommerce-powered RAG chatbot. I also build polished React/Next.js experiences and robust WordPress/WooCommerce/Shopify backends, aiming for clean architecture, consistent UX, and measurable performance improvements (90+ PageSpeed and A+ GTmetrix results).

Abhishek Khanna

Full Stack Developer, Web Developer, Front-End Developer, +4

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I’m an AI Engineer and full-stack developer who enjoys building production-grade systems where retrieval accuracy, latency, and cost all matter—not just prompts. Over the last 14+ years, I’ve delivered 50+ high-performance websites and e-commerce products, and I’ve led end-to-end engineering for teams and client roadmaps. Today I focus on RAG pipelines, agentic workflows, and LLM orchestration, backed by real-world experience shipping integrations like a WooCommerce-powered RAG chatbot. I also build polished React/Next.js experiences and robust WordPress/WooCommerce/Shopify backends, aiming for clean architecture, consistent UX, and measurable performance improvements (90+ PageSpeed and A+ GTmetrix results).…I’m an AI Engineer and full-stack developer who enjoys building production-grade systems where retrieval accuracy, latency, and cost all matter—not just prompts. Over the last 14+ years, I’ve delivered 50+ high-performance websites and e-commerce products, and I’ve led end-to-end engineering for teams and client roadmaps. Today I focus on RAG pipelines, agentic workflows, and LLM orchestration, backed by real-world experience shipping integrations like a WooCommerce-powered RAG chatbot. I also build polished React/Next.js experiences and robust WordPress/WooCommerce/Shopify backends, aiming for clean architecture, consistent UX, and measurable performance improvements (90+ PageSpeed and A+ GTmetrix results).

Available to hire

I’m an AI Engineer and full-stack developer who enjoys building production-grade systems where retrieval accuracy, latency, and cost all matter—not just prompts. Over the last 14+ years, I’ve delivered 50+ high-performance websites and e-commerce products, and I’ve led end-to-end engineering for teams and client roadmaps.

Today I focus on RAG pipelines, agentic workflows, and LLM orchestration, backed by real-world experience shipping integrations like a WooCommerce-powered RAG chatbot. I also build polished React/Next.js experiences and robust WordPress/WooCommerce/Shopify backends, aiming for clean architecture, consistent UX, and measurable performance improvements (90+ PageSpeed and A+ GTmetrix results).

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Freelance Full Stack Developer at Independent / Upwork

July 1, 2026 - Present

Working directly with global clients to build AI-integrated systems (RAG pipelines, agentic workflows, LLM orchestration) and full-stack web solutions. Owns the end-to-end lifecycle including architecture, development, deployment, and ongoing support without subcontracting or handoffs.

Frontend Engineer at Aesthetics-360 (A360)

January 1, 2025 - Present

Built multiple React/MUI applications including a multi-format media viewer (image annotation with draw/edit/export, video, PDF, before-and-after, and age-progression comparison), a Kanban dashboard, and a social media image creation tool. Designed and maintained a shared MUI theme system, created UI Contract Matrix/promotion pipeline for design consistency, and set up and maintained the company blog on WordPress.

Co-Founder & Team Lead at ONS Web Solutions

February 1, 2013 - July 1, 2026

Led technical direction and growth of a web solutions company for 13+ years, owning architecture and infrastructure choices across WordPress/WooCommerce, Shopify, and React (SPA/SSR). Built scalable WooCommerce and Shopify storefronts with subscription billing and SaaS-style features like user dashboards, calculators, and gated content while consistently achieving 90+ PageSpeed and A+ GTmetrix. Designed headless CMS architectures and mentored/trained 10+ junior developers while managing 100+ projects end-to-end.

CTO & Senior Developer at ONS Web Solutions

February 1, 2013 - Present

Led end-to-end development of custom WordPress themes and plugins achieving 90+ PageSpeed Insights and A+ GTmetrix ratings. Defined technical architecture for new projects, selecting the right stack (headless vs traditional WordPress, Shopify vs WooCommerce, React SPA vs SSR) based on client needs and scale. Built and scaled WooCommerce and Shopify storefronts with custom themes, subscription billing, and SaaS-style features including user dashboards, calculators, and gated content. Designed and deployed headless CMS architectures (WordPress REST API + React frontend) decoupling content management from the frontend for improved performance and scalability. Developed SaaS-style tools including a custom React calculator with Firebase backend, PDF generation, and EmailJS — delivering app-like experiences on client websites. Manage client relationships through Zoom/Skype consultations, translating business requirements into scalable technical solutions.

PHP Developer at Logiciel Solutions

April 1, 2012 - February 1, 2013

Developed and maintained PHP-based web applications for diverse client requirements. Collaborated on database design and backend logic using MySQL.